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Molodets [167]
2 years ago
11

Identify three adaptations found among animals that live in the polar ice caps.

Biology
1 answer:
statuscvo [17]2 years ago
4 0

thick fur or blubber, fish have antifreeze proteins that prevent their blood from freezing/.

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The first sphincter encountered in the alimentary canal is the: The first sphincter encountered in the alimentary canal is the:
Arte-miy333 [17]

Answer:

The correct answer is: upper esophageal sphincter.

Explanation:

The alimentary canal is a very long tract responsible for the digestion of the food. It is composed of several organs with many different and important functions. The alimentary canal also has a few sphincters, which are muscular valves that open and close when needed for the food to pass or be retained.

The first sphincter is the upper esophageal sphincter. One particularity of this sphincter is that is one of the few sphincters in the body that opens and closes under our conscious control, which happens when we decide to swallow our food.

From the first to the last, the order of the sphincters in the gastrointestinal tract is: upper esophageal sphincter, lower esophageal sphincter or gastroesophageal sphincter, pyloric sphincter, ileocecal sphincter, and anus.

4 0
2 years ago
Which best describes the bond that would form between lithium (Li) and fluorine (F)?
Vladimir79 [104]
They form an ionic bond by exchanging one electron
3 0
2 years ago
Read 2 more answers
A tobacco plant is heterozygous for the genes for long stems (Ss), large leaves (Ll), and fibrous roots (Rr). It is crossed with
Ainat [17]
Firstly, start by doing Punnett squares for each of the characteristics. Attached are the three Punnet squares, made by me, as they should look in end.

For each of the Punnet squares, one characteristic each, we find that half of the offspring will be heterozygous for that characteristic.
Therefore, according to the product rule, you should now multiply the quantity of heterozygous for each characteristic and then obtain the total part of the offspring that's fully heterozygous.

\frac{1}{2}Ss×\frac{1}{2}Ll×\frac{1}{2}Rr=\frac{1}{8}SsLlRr

Total offspring×\frac{1}{8}=10
There is 10 plants in the total offspring that are heterozygous for all the considered three genes.

7 0
2 years ago
Gelatin... Group of answer choices A. is a breakdown product of pectin B. gives gummy bears their chewiness C. is obtained from
kifflom [539]

Answer:

B and C are correct

Explanation:

Gelatin also referred to as hydrolyzed collagen.collagen is a structural protein in animal and undergoes hydrolysis to form gelatin.

Gelatin appears as a translucent, colorless and flavorless food ingredient used as gelling agents in food, drugs and  cosmetics.

When dry it is bristle and becomes gummy when moist.

Gummy bears are known for their chewiness and gelatin gives them the chewiness.

4 0
2 years ago
The oil immersion objective is necessary to determine the morphology of prokaryotes
VLD [36.1K]
To clearly view the morphology of the prokaryotes, one needs a microscope with higher resolution i.e magnification of ×100. Use of oil for this purpose is important because it  reduces the refraction of light as it travels from air to glass. this process increases the resolution of the microscope making it possible to view morphology of bacteria.  
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2 years ago
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